I'm a big fan of the Biggest Loser and love to watch the amazing transformations people go through as they learn to take care of themselves and take responsibility for their lives and their health. I think it's doing a great service, and I hope inspiring people to get healthy.
The only thing I hate about it, is that they send someone home after the first week of working with a trainer. It takes longer than a week to form a habit and change your behaviors. Add onto that, many of them have very low self-esteems and just get angry and defensive when they get voted off and many times they have gained the weight back.
I think they need hold off on the sending people home until they have had a month with the trainer to learn and then form good habits to live a healthy live and teach their families what they have learned. I think they would have a higher success rate and I wouldn't feel so sad yet worried for the first 4-5 people that get sent home.